Ventilating-sleeve for sulfur-burners



UNITED STATES PATENT OFFICE.

FRED B. CHAPPELL, OF GLENS FALLS, NEW YORK, ASSIGNOR OF ONE-HALF TO GLENS FALLS MACHINE WORKS, OF GLENS FALLS, NEW YORK.

VENTILATING-SLEEVE FOR SULFUEBURNERS.

' Application filed April 20,

To all whom it may concern:

Be it known that I FRED B. CHAPPELL, a citizen of the United states of America, and resident of the city of Glens Falls, in the State of New York, have invented certain new and useful Improvements in Ventilating-Sleeves for Sulfur-Burners, of which the following is a full, clear,-and exact description.

This invention relates to improvements in ventilating sleeves for sulfur burners, and the object of the invention is to provide an improved means for mixing air.with sulfur vapor immerging from the burner to insure complete combustion and avoid sublimation.

The device consists briefly of a ring or sleeve bolted to the inlet of the combustion chamber and having a plurality of inwardly projecting, radially disposed tubes provided at their outer ends with adjustable dampers. Cooperating with the sleeve is an adjustable neck ring.

11 the burning of sulfur to produce sulfur. 'dioxid it is not practicable to admit suflicient air to the chamber where the actual burning takes place to insure complete combustion, with the result that there passes from this chamber a mixture of sulfur dioxid, air impurities and sulfur vapor. If this sulfur vapor is not burned it will deposit as sulfur flour.

In order to insurecomplete combustion and avoid the formation of sulfur flour, the gasesand vapors from the burning chamber are passed through a combustion chamber with a further supply of air. The means for measuring and controlling admission of this second air supply and mixing the same with the sulfurous vapor forms the subject of the present invention.

In the drawings which illustrate the invention;

Figure 1 is a sectional view of the device shown in relation'to adjoining parts of the apparatus.

Fig. 2 is a front elevation of the device partly in section.

Fig. 3 is a side elevation.

Referring more particularly to the drawings, 11 designates a stationary combustion chamber in which sulfurous vapor is-burned and 12 a revolving combustion chamber in which the sulfur is burned. Between these two a ventilating sleeve 13, forming the subject of this invention, is disposed, being at- Specification of Letters Patent.

Patented Mar. 15, 1921.

1920. Serial No. 375,392.

a cylindrical body portion 16 provided witha flange 17, by means of which it may be bolted to the chamber 11. A plurality of inwardly projecting, radially disposed tubes 18 and 19 are provided in the sleeve, these tubes being open at both ends. The tubes 18 in the top and sides of the ring approach more nearly to the center than the tube 19 in the bottom, as clearly shown. Each tube is provided at its outer end with a sliding damper 20 held by guide strips 21.

The operation of the device is as follows ;-Sulfur is burned in the chamber 12 and the product, being sulfur dioxid, air impurities and sulfur vapor, escapes through the sleeve 13 into the chamber 11. The inwardly projecting tubes 18 and 19 carry air to the center of the stream of sulfur vapor, while air enters through the gap 15 and mingles with the vapor in the outer part of the stream. Owing to the fact that fjusted to regulate the amount of air entering. If insufiicient air is admitted the vapor will not be all burned and sublimation will occur, whereas if too much air is admitted the temperature of the flame is reduced and imperfect combustion may result.

While the device has been shown with four air tubes, two arranged horizontally and two vertically, it will be understood that the number of tubes may be decreased or increased .as desired, without departing from the spirit of the invention.

Having thus described my invention, what I claim is 1. In combination with a burner and a combustion .chamber, a ventilating sleeve comprising a tubular body portion connected to the combustion chamber and spaced from the burner to provide an intervening air admission space and inwardly jectlng, radially disposed air conduits carried by said body, the conduits which are above the horizontal diameter of the body approachin more nearly to the axis of the body than t e conduits. below the horizontal diameter.

3. A ventilating sleeve for sulfur burners,

comprising a tubular body having air inand a combustion chamber, of a ventilating lets disposed in spaced relation in its circum ference, and an independently adjustable" means for controlling the amount of air supplied through individual openings.

40 A ventilator for sulfur burners comprising a tubular body and air conduits rojecting into said body and terminating s ort of one another, thelength and arran ement of said conduits being such as to pro uce an unrestricted passage for gas eccentric with respect to the body.

5. A device according to claim 4, in which my hand.- I

the unrestricted gas passage is centered below the center of the body.

6. In combination with a burner and a combustion chamber, a ventilating sleeve according to claim 1, connected to the combustion chamber and normally spaced from the burner, and a ring slidably mounted on said burner and movable toward and away from the ventilating sleeve to regulate the entrance of air between said sleeve and the burner.

7. The combination with a sulfur burner sleeve connected to the inlet of the combustion chamber and normally spaced from the burner, whereby a circumferential air inlet is formed, said sleeve constituting a vapor conduit between the burnelnand combustion chamber, and means carried by said sleeve for introducing air to the center of a stream of sulfur vapor flowing therethrough.

. In witness whereof, I have hereunto set I FRED B. CHAP PELL. 

